rrdtutorial - Alex van den Bogaerdt's RRDtool tutorial
-=for html <div align="right">Go <a href="rrdtutorial.es.html">Spanish</a></div>
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-=for html <div align="right"><a href="rrdtutorial.pdf">PDF</a> version.</div>
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=head1 DESCRIPTION
RRDtool is written by Tobias Oetiker <oetiker@ee.ethz.ch> with